FR879825A - Visible vertical classification - Google Patents
Visible vertical classificationInfo
- Publication number
- FR879825A FR879825A FR879825DA FR879825A FR 879825 A FR879825 A FR 879825A FR 879825D A FR879825D A FR 879825DA FR 879825 A FR879825 A FR 879825A
- Authority
- FR
- France
- Prior art keywords
- vertical classification
- visible vertical
- visible
- classification
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
- B42F19/00—File cards
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K21/00—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting
- G06K21/02—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting in which coincidence of markings is sensed mechanically, e.g. by needle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR879825T | 1940-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR879825A true FR879825A (en) | 1943-03-05 |
Family
ID=9361970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR879825D Expired FR879825A (en) | 1940-10-24 | 1940-10-24 | Visible vertical classification |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR879825A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE945144C (en) * | 1950-10-21 | 1956-07-05 | Gruener K G | Index grid for steep index cards |
-
1940
- 1940-10-24 FR FR879825D patent/FR879825A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE945144C (en) * | 1950-10-21 | 1956-07-05 | Gruener K G | Index grid for steep index cards |
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